CMT 550-022X Multi-Purpose TCT Hole Saw - 7/8" (22mm) is a carbide-tipped hole saw engineered for demanding multi-material cutting tasks across construction and renovation applications. Designed with a tungsten carbide (TCT) cutting edge and right-hand rotation, this 22mm hole cutter tackles wood, plywood, MDF, laminates, plasterboard, plastics, bricks, aerated concrete, and soft tiles with consistent, clean results. The hexagonal shank design ensures secure chuck engagement in cordless drills, corded drills, and drill presses, making it a practical everyday tool for tradespeople and contractors who need reliable performance across diverse substrates on the same jobsite.

Key Features

• Tungsten Carbide (HW) Cutting Material - construction-grade carbide tips stay sharp through hard, abrasive materials like bricks and aerated concrete that would quickly dull standard bi-metal hole saws, reducing tool changeovers and increasing productivity.
• 7/8" (22mm) Cutting Diameter - a precise, industry-common hole size suited for conduit pass-throughs, lockset prep, pipe penetrations, and fixture mounting across wood, composite, and masonry materials.
• 60mm Cutting Depth - deep enough to cut through thick structural members, double-layer plasterboard assemblies, and solid masonry blocks in a single pass, eliminating the need to flip or re-register the workpiece.
• Hexagonal Shank Design - the hex shank seats firmly in standard hex-drive chucks without slipping under load, ensuring accurate hole placement and reducing fatigue from tool walk during repeated cuts.
• Right-Hand Rotation (RH) - compatible with all standard drill configurations right out of the box, no settings adjustment needed, so work begins immediately without setup delays.
• Multi-Purpose TCT Construction - a single hole saw handles wood, plywood, MDF, laminates, plasterboard, plastics, bricks, aerated concrete, and soft tiles, reducing the number of specialized tools a technician must carry to the job.

Why This Product

• The carbide-tipped (TCT) tooth construction means this hole saw cuts through genuinely tough materials - including bricks, aerated concrete, and ceramic soft tiles - without requiring a dedicated masonry tool for each substrate, making it a cost-effective choice for mixed-material installations.
• A 60mm cutting depth handles thick structural panels, masonry blocks, and stacked board assemblies in one pass, saving setup time compared to shallower hole saws that require multiple operations or workpiece repositioning.
• The hexagonal shank provides positive anti-rotation engagement in standard drill chucks, which means less energy is lost to slippage and more torque is directed into the cut - especially valuable when boring through dense materials like brick or hard plastic.
• At 7/8" (22mm), this is a frequently specified diameter for electrical conduit, plumbing rough-in, and hardware installation work, so having a durable TCT version of this common size available covers a wide range of recurring trade tasks without upsizing to larger, heavier tools.

Specifications

• Manufacturer Part Number: 550-022X
• Brand: CMT Orange Tools
• Diameter: 7/8" (22mm)
• Cutting Depth: 60mm
• Number of Teeth: 1
• Material: HW (Tungsten Carbide)
• Shank: Hexagonal
• Rotation: RH (Right-Hand)

Approved Applications

• Hole cutting in wood and plywood
• Hole cutting in MDF and laminates
• Hole cutting in plasterboard and drywall assemblies
• Hole cutting in plastics and synthetic panels
• Hole cutting in bricks and aerated concrete masonry
• Hole cutting in soft tiles